Environmental monitoring through ammonia nitrogen water quality measuring instruments is an important practical process. It not only helps us systematically evaluate and monitor the health of water bodies, but also provides a scientific basis for environmental management decisions.This process includes several key operating steps, each of which is crucial to the accuracy and reliability of the final result. The following are the key steps and precautions for environmental monitoring using the national standard method for ammonia nitrogen:
Ⅰ.Sample Collection
- Selection of sampling points: The selection of representative sampling points is the primary task, which needs to be determined according to the monitoring purpose and the characteristics of the water body. For example, when monitoring rivers, sampling points should be set up in different river sections; in lake monitoring, different depths and areas need to be considered.
- Sampling time and frequency: In order to accurately reflect the average level of ammonia nitrogen in the water body, the sampling time and frequency should be determined according to the use function of the water body, hydrological conditions and other factors. For example, the sampling frequency should be increased after rainfall or when there are industrial discharges upstream.
- Preparation of sampling containers: Use clean, non-contaminated containers to collect samples to avoid sample contamination or changes in ammonia nitrogen content.
Ⅱ.Sample storage and handling
- Sample filtration: The collected water samples are filtered to remove suspended matter and sediment to prevent these particles from affecting the accuracy of subsequent analysis.
- Sample storage conditions: Water samples need to be stored at low temperature and dark conditions. Preservatives may need to be added to inhibit microbial activity and prevent changes in ammonia nitrogen concentrations.
Ⅲ.Color development and colorimetry
- Control of reaction conditions: According to the specific requirements of the national standard method for ammonia nitrogen, strictly control the reaction conditions, such as temperature, pH value, reaction time, etc., to ensure complete and consistent color development.
- Use of spectrophotometer: Use a calibrated spectrophotometer for colorimetric determination. Regularly calibrate the instrument with standard solutions to ensure measurement accuracy.
Ⅳ.Data Analysis and Reporting
- Establishment of standard curve: By measuring standard solutions of known concentration, a standard curve is established, which is the basis of quantitative analysis.
- Data processing and analysis: Combine laboratory analysis and field monitoring data, compare historical data, conduct trend analysis, identify abnormal situations, and explore their environmental impact.
- Preparation of monitoring reports: Prepare detailed monitoring reports, including sampling information, measurement results, data analysis and recommended measures to provide reference for environmental management.
Ⅴ.Quality Control and Assurance
- Replicate sample measurement: Replicate sample measurement is used to evaluate the precision and accuracy of the method.
- Blank experiment and spike recovery experiment: Blank experiment is performed to eliminate background interference, and spike recovery experiment is performed to verify the accuracy of the method and the loss during sample handling.
Ⅵ.Application of monitoring results
- Environmental quality assessment: Based on monitoring results, evaluate the nutrient status of water bodies, identify pollution sources and the migration and transformation process of pollutants.
- Pollution prevention and control measures: Propose targeted pollution prevention and control measures, guide environmental protection work, and provide a scientific basis for policy formulation and environmental management.
In summary, using the national standard method of ammonia nitrogen water quality meter to conduct environmental monitoring is not only a scientific analysis process, but also a comprehensive environmental protection action. Through accurate measurement and analysis, we can not only grasp the health status of water bodies in a timely manner, but also effectively prevent and reduce environmental pollution and promote the sustainable use and protection of water resources.The ammonia nitrogen water quality detector produced by Erun Environmental Protection complies with national standards and is widely used in boiler water, surface water, circulating cooling water and other water quality. It also has application cases in hospital medical treatment, environmental monitoring, food factories, manufacturing, metallurgy and other industries. If you need detailed information and quotation, please consult customer service or call the contact number.
